Realization of Virtual-Link on a Network

Abstract: A network is group of computers and other devices running on suitable protocols enabling data and multimedia communication. Multimedia includes image, audio, video and text. Router is a part of the network and is responsible for forwarding the packets. A routing protocol specifies how routers communicate with each other. Open Shortest Path First (OSPF) is a dynamic routing protocol and uses Dijkstra shortest path first algorithm to determine the shortest path. OSPF employs a hierarchical network design using areas. Area 0 is the backbone area. All other areas that is area n, where n=1,2,3…. are (must be) directly connected to the backbone. But in several cases the non-backbone area cannot be directly connected to area 0. In this paper we present to you the configuration of virtual-links to logically connect separated areas to area 0.

Keywords: Data Communication, Multimedia Communication, Open Shortest Path First (OSPF), Hierarchical Network Design, Virtual-Links to Logically Connect Separated Areas to Area 0, Autonomous Systems (AS)